Elon Musk unveiled his underground transportation tunnel on Tuesday, allowing reporters and invited guests to take some of the first rides in the revolutionary albeit bumpy subterranean tube — the tech entrepreneur's answer to what he calls "soul-destroying traffic."

Nearly two dozen consumer, privacy and public health groups are urging U.S. regulators to investigate whether children are being endangered by deceptive apps in Google's app store for smartphones running on its Android software.

President Donald Trump and Democratic lawmakers are in a standoff over funding the government, and the main sticking point is Trump's demand for $5 billion to build a wall along the U.S.-Mexico border.